locky | e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-en-20211208
submitted
05/03/2022, 22:10

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General

Target

e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe
Size

595KB
MD5

1c1a6b70b5e2b13c019d5cbdf0f12738
SHA1

d21b9d5ca7327bb1ca57aaf8752e7764a3334fe8
SHA256

e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4
SHA512

f6c37079d3f7ae55cfdb1e588830d30bad4b820afc7765c20081a501fe916c6b1b8aa78090801ecb7f3776ae8766987220af5a4eb2639b7d87f56721be7bc675

Score

10^/10

locky ransomware

Malware Config

Signatures

Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
ransomware locky
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Deletes itself 1 IoCs

pid	Process
1156	cmd.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\ykcol.bmp"	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Interacts with shadow copies 2 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1660	vssadmin.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\TileWallpaper = "0"	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Control Panel\Desktop\WallpaperStyle = "0"	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000f302f7a020b975438ea1f1f995ba978300000000020000000000106600000001000020000000afceae840e87cfcb4495ec86d37a748616c691ccb8058323eb9d92d79babe55a000000000e80000000020000200000009e7cbdc76732e08fd62745cd5500913d8f9b6dd0b9ad3aefa898ea7795d04c4920000000f208e4b58b7eb24080bdf585ca4fce3cff467190ad691be035d1d70aef36d5e7400000000e5aa8eb616f9f39fcbe05816588e6cc300f1c8e53ef6df7cbfd32fa39b304f947a989516d010d9de35be9cc67181a001a95811193e20cbf737db36fb3721920	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A8E019D1-9CD9-11EC-8521-66AA5408C5BE} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "353286905"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 5031aa83e630d801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000f302f7a020b975438ea1f1f995ba978300000000020000000000106600000001000020000000f5324d863ea5d764ac39023310abb8ba72da2ba5fccb6a19963450245d568579000000000e80000000020000200000003a231fb16186a36ccce6d8fb5186bb7a34e9d20196925ab6a5bd7ed14b377e7b90000000fce3d7c80605ad2f9041ea0c83bb746c0908aea481ed702220c68208dfd8e12db2b915fe6c96d0bc113f57b76bd372f546c9848735910ec674f47cb292eb99938edd71dccb56f8aff741d5917838b3a052cedd2800f8a17a741a2a672fcadea3cfa90714ac6f8978805a7bdee056dbf802325ca60714a6a7e80630ed1643283f358dbd35e35a2914969b6a609ee281c14000000082d324f24aba79b3c2634d0757b2f20c216bd8704d21009ead5fbcedf695e04dbb6bfc294b4060460f8e8acbe4c34ce5da83b1792e9cf156e6be79659a9b2b17	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	760	vssvc.exe
Token: SeRestorePrivilege	760	vssvc.exe
Token: SeAuditPrivilege	760	vssvc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1844	iexplore.exe
916	DllHost.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1844	iexplore.exe
1844	iexplore.exe
1592	IEXPLORE.EXE
1592	IEXPLORE.EXE
1592	IEXPLORE.EXE
1592	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 1660	1148	taskeng.exe	30
PID 1148 wrote to memory of 1660	1148	taskeng.exe	30
PID 1148 wrote to memory of 1660	1148	taskeng.exe	30
PID 780 wrote to memory of 1844	780	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe	34
PID 780 wrote to memory of 1844	780	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe	34
PID 780 wrote to memory of 1844	780	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe	34
PID 780 wrote to memory of 1844	780	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe	34
PID 780 wrote to memory of 1156	780	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe	37
PID 780 wrote to memory of 1156	780	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe	37
PID 780 wrote to memory of 1156	780	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe	37
PID 780 wrote to memory of 1156	780	e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe	37
PID 1844 wrote to memory of 1592	1844	iexplore.exe	39
PID 1844 wrote to memory of 1592	1844	iexplore.exe	39
PID 1844 wrote to memory of 1592	1844	iexplore.exe	39
PID 1844 wrote to memory of 1592	1844	iexplore.exe	39

C:\Users\Admin\AppData\Local\Temp\e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe
"C:\Users\Admin\AppData\Local\Temp\e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:780
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\ykcol.htm
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1844
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1844 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:1592
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\e5bafdd9d27defccb5c62db15a0374ccdeedb6a279b33776e8fc1ecb728d70e4.exe"
  2⤵
  - Deletes itself
  PID:1156

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:760

C:\Windows\system32\taskeng.exe
taskeng.exe {ACBBDE39-7226-4B2B-B392-E2B99AA35CF1} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Windows\system32\vssadmin.exe
  C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
  2⤵
  - Interacts with shadow copies
  PID:1660

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:916

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

memory/780-54-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/780-55-0x0000000000400000-0x0000000000498000-memory.dmp

Filesize
608KB

Download
memory/780-56-0x00000000769D1000-0x00000000769D3000-memory.dmp

Filesize
8KB

Download
memory/780-57-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/780-58-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/780-60-0x00000000024D0000-0x00000000024D2000-memory.dmp

Filesize
8KB

Download
memory/916-61-0x0000000000220000-0x0000000000222000-memory.dmp

Filesize
8KB

Download
memory/916-62-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads